| 摘要 |
<p>Monitoring a laser beam (1) by means of a partially reflective mirror (3) which divides the beam (1) into a low intensity transmitted beam (5) and a high intensity reflected beam (4) having similar intensity distributions over their cross-sections and sensing the intensity distribution over a cross-section of the low intensity beam (5) by means of a thermal imaging camera (6) to produce a display representative of the intensity distribution of the intensity beam (4) on an oscilloscope 7. The intensity distribution of the laser beam (1) and/or the position of the beam (1) can thus be monitored.</p> |
